Dear Sandeep,
thanks for your first message to the openbcs mailing list.
On Tue, Mar 04, 2025 at 12:57:19PM +0000, Sandip Biswas wrote:
> I want to integrate EPC core (Open5GS) with open-source SGSN, It would be
> very helpful if anyone can share any document where I can find the
> installation steps and all.
In case this is a commercial inquiry, you can always reach out to companies
and/or freelancers providing paid services around open5gs and/or osmocom.
Your subject mentions S3/S4. This appears to imply that osmo-sgsn implements
the
S4 interface. As far as I recall, this is an optional interface within the
3GPP architecture. In fact,
the SGSN at that point is not just a SGSN anymore, but 3GPP calls it a S4-SGSN.
We did not mention
that term anywhere on osmocom.org in the context of osmo-sgsn, as osmo-sgsn is
a classic SGSN (for 2G and 3G), and not a S4-SGSN.
To this day, the only integration between open5gs and Osmocom CNI is the SGs
interface for both CSFB as well
as SMS-over-SGs. The Gn interface is used for mobility between GERAN/UTRAN
(osmo-sgsn) and EUTRAN/EPC (PGW).
We'd be very happy to see anyone contributing code or funding of extending
osmo-sgsn from a SGSN to a
S4-SGSN.
Kind regards,
Harald
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--
- Harald Welte <[email protected]> https://laforge.gnumonks.org/
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